Browse Prior Art Database

Volatile Memory Data Retention

IP.com Disclosure Number: IPCOM000076343D
Original Publication Date: 1972-Feb-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Anderson, RD: AUTHOR [+2]

Abstract

Volatile memories, such as field-effect shift register memories, packaged in pluggable modular units for use in computer systems, have their data retained while in storage by transporting the memory units under power to energized storage rack 10, shown in Fig. 1 containing memories 12 and 12A.

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Volatile Memory Data Retention

Volatile memories, such as field-effect shift register memories, packaged in pluggable modular units for use in computer systems, have their data retained while in storage by transporting the memory units under power to energized storage rack 10, shown in Fig. 1 containing memories 12 and 12A.

Volatile memory 12, which may be a basic storage module, is removed from the using system (not shown) with the aid of extracting fixture 14, having a battery pack 16 with a plug adapted to mate with electrical terminals 18 in volatile memory 12, as shown in Fig. 2. A pair of thumb-screws 20, 22 are used to secure extracting fixture 14 to volatile memory 12. Extracting fixture 14 may include appropriate covers forming a compact carrying case. If desired, battery power can be provided by floating batteries across the memory power inputs as an integral part of the memory.

After removing volatile memory 12 from the using system, the memory is stored on a shelf in rack 10 which contains a power supply and cooling system section 24, and a control panel section 26. The power supply provides power to memory 12 through connections similar to those used to connect memory 12 to the using system and, when desired, the cooling system is used to hold memory 12 at a proper operating temperature. Control panel 26, provided in rack 10 for maintenance purposes, includes suitable circuitry for such exercises as error correction, voltage monitoring and pulse sens...